Check ring notch combination tool

Abstract

The utility model provides a check ring notch combination tool which comprises a check ring carrier used for placing and limiting a check ring and a base used for supporting the check ring carrier. A carrier notch crossed with the check ring is formed in the position, matched with the check ring, of the check ring carrier; and a pressing mechanism for pressing the retainer ring carrier is arranged on the base. The check ring is conveniently arranged in a limiting mode through the check ring carrier, the carrier notch is formed in the check ring carrier and intersects with the check ring to correspond to the to-be-cut position of the check ring, and the check ring notch can be conveniently cut and machined through a cutter; the retainer ring carrier is pressed on the base through the pressing mechanism, so that the retainer ring is in a stable state, a rapid cutting mode of linear cutting is conveniently adopted, the direction and angle of a notch of the retainer ring are more easily guaranteed, and the notch is smooth and free of burrs.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a retaining ring cutting tool. Background Technology

[0002] Polytetrafluoroethylene (PTFE) retaining rings are sealing materials with high chemical resistance and high-temperature stability, widely used in sealing applications across various industries. Due to their unique corrosion resistance and excellent high-temperature resistance, they have received widespread attention and application in chemical, aerospace, medical, electronics, and energy fields. The notch on a PTFE retaining ring is not a form of damage, but rather a necessary design requirement. Because PTFE retaining rings possess a certain degree of flexibility and elasticity, without a notch, the ring diameter would be too large during installation, leading to compression deformation and reducing installation quality and service life.

[0003] However, existing technology lacks specialized processing equipment for cutting retaining rings. If the cutting is done manually, there are problems with poor cut smoothness and low cut quality.

[0004] Chinese utility model patent CN220481858U, published on February 13, 2024, discloses a cutting fixture for fluoroplastic retaining rings, belonging to the field of aerospace equipment maintenance. It addresses the problems of difficulty in ensuring the cutting angle, high manufacturing difficulty, and low work efficiency during the cutting process of fluoroplastic retaining rings. The fixture includes a cylindrical positioning block, a cylindrical mounting block, and a positioning structure. This utility model replaces manual control of the cutting arc angle with a guide groove for the retaining ring cutting. Operators can use a single-edged blade to cut along the guide groove, ensuring cutting quality and simplifying the workflow, allowing even novice operators to independently complete the cutting work of retaining rings. However, although this cutting fixture can fix the retaining ring, the fixture itself cannot be fixed, making it difficult to use a quick wire cutting method after the retaining ring is in a stable state, thus affecting cutting efficiency and cutting quality. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model proposes a retaining ring cutting assembly tooling to solve the problem that the existing retaining ring cutting tooling itself cannot be fixed, making it inconvenient to use wire cutting for quick cutting after the retaining ring is in a stable state, thus affecting cutting efficiency and cutting quality.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A retaining ring cutting assembly includes a retaining ring carrier for placing and limiting the retaining ring, and a base for supporting the retaining ring carrier. The retaining ring carrier has a carrier cut that intersects with the retaining ring at the position where it mates. The base has a clamping mechanism for pressing the retaining ring carrier. This invention facilitates the limiting and setting of the retaining ring through the retaining ring carrier. The carrier cut on the retaining ring carrier, intersecting with the retaining ring to correspond to the cutting position of the retaining ring, facilitates wire EDM processing of the retaining ring cut. The clamping mechanism presses the retaining ring carrier firmly onto the base, making it easier to ensure the cutting direction and angle, and ensuring a smooth, burr-free cut.

[0008] Furthermore, the clamping mechanism includes a pressure plate and an adjustable connecting piece that connects the pressure plate to the base. The pressure plate and the base are respectively attached to the upper and lower sides of the retaining ring carrier to clamp the retaining ring carrier.

[0009] Furthermore, to facilitate the adjustment of the adjustable connector, the adjustable connector is a bolt, and the base is provided with bolt holes that mate with the bolt.

[0010] Furthermore, in order to more easily apply pressure to the pressure plate with bolts to tighten the retaining ring carrier, the pressure plate is provided with through holes for the bolts to pass through.

[0011] Furthermore, the retaining ring carrier includes a cylinder or cylindrical body and an annular groove disposed at one end of the cylinder or cylindrical body for placing the retaining ring. The inner wall of the annular groove is fitted with the inner ring surface of the retaining ring to limit the retaining ring.

[0012] Furthermore, to facilitate the placement of the retaining ring, the cross-section of the annular groove along the axial direction of the cylinder is L-shaped, making the annular groove an L-shaped groove; the carrier cut passes obliquely through the L-shaped groove.

[0013] Furthermore, the base is provided with an inclined surface for supporting the retaining ring carrier. The angle between the inclined surface and the horizontal plane is equal to the angle between the carrier cut and the end face of the cylinder or cylindrical body, so that the carrier cut is in the vertical direction when the cylinder or cylindrical body is placed on the inclined surface by the side.

[0014] Furthermore, in order to make the retaining ring carrier more stable, the inclined surface is also provided with a concave arc surface that fits with the side of the cylinder or cylindrical body so that the retaining ring carrier is stably pressed onto the base.

[0015] Furthermore, in order to stably tighten the retaining ring carrier using a single bolt, the tightening mechanism also includes a support block, which is disposed between the pressure plate and the base, and the support block and the retaining ring carrier are respectively located on the lower sides of both ends of the pressure plate.

[0016] Furthermore, in order to maintain the stability of the support block, the upper and lower ends of the support block are respectively provided with planes that cooperate with the pressure plate and the base.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model facilitates the setting of the retaining ring on the retaining ring carrier for limiting the position. By setting a carrier cut on the retaining ring carrier and intersecting the retaining ring to correspond to the position to be cut on the retaining ring, it is easier to process the retaining ring cut with a wire cutting tool, and it is easier to ensure the cutting direction and angle, and ensure that the cut is flat and burr-free.

[0019] 2. This utility model uses set bolts and pressure plates to fix the retaining ring carrier on the base, while the support block provides additional support to improve the stability of the retaining ring carrier, making the retaining ring more stable during the cutting process, thereby improving the processing quality;

[0020] 3. This utility model only requires processing the retaining ring carrier according to the retaining ring specifications, while the base, support block, set screw, and pressure plate parts are universal and can be applied to retaining ring carriers corresponding to different retaining ring specifications;

[0021] 4. This utility model adopts a combined tooling form to realize the tooling processing of retaining ring cutting, which can be promoted and applied to similar retaining ring products, and has certain reference and guiding significance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 for Figure 1 The side view shown;

[0025] Figure 3 This is a schematic diagram of the retaining ring of this utility model.

[0026] In the diagram: 1. Support block, 2. Fastening bolt, 3. Pressure plate, 4. Retaining ring carrier, 41. Carrier cutout, 5. Base, 6. Retaining ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 As shown in Embodiment 1 of this utility model, a retaining ring cutting assembly tooling includes a retaining ring carrier 4 for placing and limiting the retaining ring 6, and a base 5 for supporting the retaining ring carrier 4. The retaining ring 6 has the following structure: Figure 3 As shown, the retaining ring carrier 4 has an annular groove for placing the retaining ring 6. At the position where the retaining ring carrier 4 mates with the retaining ring 6, there is a carrier cutout 41 that intersects with the retaining ring 6. That is, the carrier cutout 41 passes through the annular groove and can extend from one side of the retaining ring 6 to the other side, thus facilitating the machining of the retaining ring within the annular groove at the carrier cutout 41. Simultaneously, the base 5 supports the retaining ring carrier 4. Furthermore, the base 5 is equipped with a clamping mechanism for pressing the retaining ring carrier 4, which can fix the entire retaining ring carrier 4 in place, facilitating the stability of the retaining ring during machining and improving machining quality.

[0029] Furthermore, such as Figure 1 As shown, the clamping mechanism includes a pressure plate 3 and an adjustable connector, which connects the pressure plate 3 to the base 5. The pressure plate 3 and the base 5 respectively fit against the upper and lower sides of the retaining ring carrier 4 to press the retaining ring carrier 4 onto the base 5. After the retaining ring carrier 4 is placed between the pressure plate 3 and the base 5 via the adjustable connector, the distance between the pressure plate 3 and the base 5 is adjusted to gradually tighten the retaining ring carrier 4.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the adjustable connector is bolt 2, and the base 5 has bolt holes that mate with bolt 2. By screwing bolt 2 deeper and deeper into the bolt holes, the pressure plate 3 presses the retaining ring carrier 4 tightly.

[0031] Furthermore, the pressure plate 3 is provided with a through hole for the bolt 2 to pass through. After the bolt 2 passes through the through hole of the pressure plate 3, it is screwed into the bolt hole, and the nut end of the bolt 2 applies pressure to the pressure plate 3, so that the pressure plate 3 presses the retaining ring carrier 4 tightly.

[0032] Example 2 differs from Example 1 in that, as Figure 2 As shown, the retaining ring carrier 4 includes a cylinder or cylindrical body and an annular groove disposed at one end of the cylinder or cylindrical body. That is, the retaining ring carrier 4 can be a cylinder or a cylindrical body, and an annular groove is provided at one end of the cylinder or cylindrical body, with the annular groove coaxially arranged with the cylinder or cylindrical body. This annular groove is used to house the retaining ring 6. The retaining ring 6 is fitted into the annular groove, so that the inner wall of the annular groove fits against the inner ring surface of the retaining ring 6 to limit the retaining ring 6, thereby maintaining the stability of the retaining ring 6.

[0033] Example 3 differs from Example 2 in that, as Figure 1As shown, the cross-section of the annular groove along the axial direction of the cylinder is L-shaped, making the annular groove an L-shaped groove. That is, a circular boss extends axially from the end face of the cylinder or cylindrical body. The boss is coaxially arranged with the cylinder or cylindrical body, and the diameter of the circular boss is smaller than the diameter of the cylinder or cylindrical body, forming an annular L-shaped groove between the outer circumference of the circular boss and the cylinder or cylindrical body. This allows the retaining ring 6 to be easily installed by simply fitting it onto the boss.

[0034] Furthermore, the carrier cutout 41 passes obliquely through the L-shaped groove, that is, the carrier cutout 41 has an included angle with the end face of the cylinder or cylindrical body.

[0035] Example 4 differs from Example 2 in that the base 5 is provided with an inclined surface for supporting the retaining ring carrier 4. The angle between the inclined surface and the horizontal plane is equal to the angle between the carrier cut 41 and the end face of the cylinder or cylindrical body. This ensures that when the cylinder or cylindrical body is placed on the inclined surface via its side or outer circumference, the carrier cut 41 is in a vertical direction, facilitating vertical cutting of the retaining ring by the tool. It also allows this fixture to be used in conjunction with some cutting fixtures where the tool is fixed and the blade is facing upwards.

[0036] Example 5 differs from Example 4 in that, as Figure 1 and Figure 2 As shown, the inclined surface is also provided with a concave arc surface that fits with the side of the cylinder or cylindrical body. The side of the retaining ring carrier 4, i.e. the outer peripheral surface, is attached to the concave arc surface so that the retaining ring carrier 4 is stably pressed onto the base 5.

[0037] Example 6 differs from Example 1 in that, as Figure 1 and Figure 2 As shown, the clamping mechanism also includes a support block 1, which is disposed between the pressure plate 3 and the base 5. The support block 1 and the retaining ring carrier 4 are located on the lower sides of both ends of the pressure plate 3, respectively. Furthermore, the upper and lower ends of the support block 1 are respectively provided with planes that mate with the pressure plate 3 and the base 5, facilitating the stability of the support block 1. The support block 1 helps maintain the balance of the pressure plate 3, allowing the pressure plate 3 to clamp the retaining ring carrier 4 using only a single bolt 2, and facilitating the adjustment of the bolt 2 to ensure the pressure plate 3 clamps the retaining ring carrier 4.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features thereof, within the spirit and principles of the present invention, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A retaining ring cutting assembly tooling, characterized in that, It includes a retaining ring carrier (4) for placing and limiting the retaining ring (6) and a base (5) for supporting the retaining ring carrier (4); the retaining ring carrier (4) has a carrier cutout (41) that intersects with the retaining ring (6) at the position where it mates with the retaining ring (6); the base (5) is provided with a pressing mechanism for pressing the retaining ring carrier (4).

2. The retaining ring cutting assembly tooling according to claim 1, characterized in that, The pressing mechanism includes a pressure plate (3) and an adjustable connector connecting the pressure plate (3) and the base (5). The pressure plate (3) and the base (5) are respectively attached to the upper and lower sides of the retaining ring carrier (4) to press the retaining ring carrier (4).

3. The retaining ring cutting assembly tooling according to claim 2, characterized in that, The adjustable connector is a bolt (2), and the base (5) is provided with bolt holes that cooperate with the bolt (2).

4. The retaining ring cutting assembly tooling according to claim 3, characterized in that, The pressure plate (3) is provided with through holes for the bolts (2) to pass through.

5. The retaining ring cutting assembly tooling according to any one of claims 2 to 4, characterized in that, The retaining ring carrier (4) includes a cylinder or cylindrical body and an annular groove provided at one end of the cylinder or cylindrical body for placing the retaining ring (6). The inner wall of the annular groove is fitted with the inner ring surface of the retaining ring (6) to limit the retaining ring (6).

6. The retaining ring cutting assembly tooling according to claim 5, characterized in that, The cross section of the annular groove along the axial direction of the cylinder is L-shaped, making the annular groove an L-shaped groove; the carrier cut (41) obliquely passes through the L-shaped groove.

7. The retaining ring cutting assembly tooling according to claim 6, characterized in that, The base (5) is provided with an inclined surface for supporting the retaining ring carrier (4). The angle between the inclined surface and the horizontal plane is equal to the angle between the carrier cut (41) and the end face of the cylinder or cylindrical body, so that the carrier cut (41) is vertical when the cylinder or cylindrical body is placed on the inclined surface by the side.

8. The retaining ring cutting assembly tooling according to claim 7, characterized in that, The inclined surface is also provided with a concave arc surface that fits the side of the cylinder or cylindrical body so that the retaining ring carrier (4) is stably pressed onto the base (5).

9. The retaining ring cutting assembly tooling according to any one of claims 2-4 and 6-8, characterized in that, The clamping mechanism also includes a support block (1), which is disposed between the pressure plate (3) and the base (5), and the support block (1) and the retaining ring carrier (4) are located on the lower sides of both ends of the pressure plate (3).

10. The retaining ring cutting assembly tooling according to claim 9, characterized in that, The upper and lower ends of the support block (1) are respectively provided with planes that cooperate with the pressure plate (3) and the base (5).

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